getting up by thinking of my gf

i get in the mood every time i think about about my girl, and not just thinking of her sexually. in fact b4 we done it our one and only time, and while i was constantly pmo, i would get up to her instead of to porn like usual but still pmo. so when the time came for the real thing, i couldn't get up as i would from thinking about her and couldn't finish. what led me to the conclusion of me having pied was that nxt morning, i was able to finish easily from pmo like always, so ik i work physical but not mentally.

now that im tryn to quit for my gf sake, every time i get up i just wait til it goes down. is it a good sign that i get hard to her, but don't mo just wait til it passes or should i not even get hard til im rebooted?